Category "illegalstateexception"

What does "pending composition has not been applied" exception mean and how can it be avoided?

I have a working application, but sometimes, for reasons unknown to me, the application crashes with this message: java.lang.IllegalStateException: pending com

java.lang.IllegalStateException:Make sure the content of your adapter is not modified from a background thread, but only from the UI thread

java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is